Combination terminal



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Filed July 23, 1924 INVENTUR Jhn, Jmwcker.

4 TTORIIEYS I ill Patented May 3, 1927.

PATENT OFFICE.

JOHN J. MUCHER, 0F BROOKLYN, NEW YORK.

COMBINATION TERMINAL.

Application filed July 23, 1924. Serial No. 727,812.

This invention relates to terminals for electrical apparatus andparticularly to an improved combination terminal for electrodes ofelectric apparatus and has for an object to provide an improvedconstruction and arrangement whereby a spring terminal may be readilymounted on a carbon stick and held firmly in operative position.

Another object of the invention is to provide a combined U-shaped springterminal and a cap.

In the accompanying drawing- Figure 1 is a side view of the upper partof the carbon electrode of a battery with a combination terminalembodying the invention applied thereto.

Figure 2 is a top view of the structure shown in Figure 1.

Figure 3 is a sectional view through the terminal shown in Figure 2, thesame being approximately on line 3-3 of this figure.

Figure 4 is a sectional view through Figure 2, approximately on line 44.

Figure 5 is a perspective view of the cap shown in Figure 1.

Figure 6 is a front edge view of a modified structure to that shown inFigure 1,

Figure 7 is a sectional view through Figure 6, approximately on line7-7.

Referring to the accompanying drawin by numerals, 1 indicates a carbonstick use as one of the electrodes in an electric cell of the varietycommonly known as dry cells. Heretofore, difierent means have beenprovided for connecting a terminal for receiving the wire to this formof electrode. In the present invention, which is formed with a dependingannular flange 3 formed of such a size as to snugly I fit the upper endof the carbon 1. The cap 2 is made of thin metal and the flange 3 is,therefore, somewhat resilient whereby it can be forced with someconsiderable pressure over the end of the carbon 1 and be readily heldin place by friction. Mounted on this cap is a terminal clamp 4 which isclamped or riveted in position and which acts as means for receiving thewire to be connected with the terminal or electrode 1.

As shown in Figure 5, the cap 2 is provided with pressed up tongues 5and 6 and a pressed up annular spur or eyelet 7. The

a cap 2 is provided clamping action not only produces a good electricalconnection but also produces a good mechanical connection of the twoparts. The clamp 4 is provided with a clamping section 10 having anaperture 11 through which the wire receiving hook 12 is adapted toproject when the end 13 is pressed downwardly. When this occurs, thewire may be inserted in the usual manner and the clamping section 10allowed to swing back so as to press the wire against the hook 12 tomake a good connection.

In Figures 6 and 7 a slightly modified construction is shown wherein thecap 2 and the clamp 4 are made of one piece and when this happens theflange 3 is open at 14 which permits the flange to be readily bentinwardly whenever desired to permit a greater pressure against theterminal carbon 1. This is of advantage where the carbons are slightlyoff size as the flange may be moved to accommodate either a larger orsmaller flange and to produce a good gripping action there-against. Thisarrangement also reduces the amount of metal necessary and also the workof forming the tongues 5 and 6 and the rivets 7.

What I claim is:

A terminal for the carbon electrode of dry cells comprising a cap havingtwo spaced and oppositely arranged elongated struck up tongues and astruck up eyelet at one end of the tongues and a wire clamping terminalmember having a base provided at one end with an opening and arrangedbetween the tongues of the cap, the tongues being bent down upon andinto firm engagement with the base of said member and the eyelet passedthrough the opening of said base and upset.

JOHN J. MUOHER.

